Results 211 to 220 of about 17,683 (250)

Toxicology and risk assessment of 5‐Hydroxymethylfurfural in food

Molecular Nutrition & Food Research, 2011
Abstract5‐Hydroxymethylfurfural (5‐HMF) as a product of the Maillard reaction is found in many foods. Estimated intakes range between 4 and 30 mg per person and day, while an intake of up to 350 mg can result from, e.g., beverages made from dried plums.
Klaus, Abraham, Rainer, Gürtler, Katharina, Berg, Gerhard, Heinemeyer, Alfonso, Lampen, Klaus E, Appel   +5 more
openaire   +2 more sources

Catalytic Hydrogenation of 5‐Hydroxymethylfurfural to Hexanetriol

ChemistrySelect, 2022
Abstract The catalytic conversion of furan derivatives, furfural and 5‐hydroxymethylfurfural (HMF), to valuable chemicals is of great importance due to the increase in carbon emissions and decrease in fossil fuels. In this manuscript, 1,2,5‐hexanetriol was transformed to HMF through a two steps procedure.
Chi Zhang, Yueju Li, Xuechuan Lv, Xiaohan Gao, Ying Duan, Dong Sui, Yanliang Yang   +6 more
openaire   +1 more source

Physiological effects of 5-hydroxymethylfurfural on Saccharomyces cerevisiae

Applied Microbiology and Biotechnology, 2000
The physiological effects of 5-hydroxymethylfurfural (HMF) on Saccharomyces cerevisiae CBS 8066 in the presence and absence of furfural were studied. Experiments were carried out by pulse addition of HMF (2-4 g/l) as well as HMF (2 g/l) together with furfural (2 g/l) to batch cultivations of S. cerevisiae.
M J, Taherzadeh, L, Gustafsson, C, Niklasson, G, Lidén   +3 more
openaire   +2 more sources

Conversion of Glucose to 5-Hydroxymethylfurfural at High Substrate Loading: Effect of Catalyst and Solvent on the Stability of 5-Hydroxymethylfurfural

Energy & Fuels, 2020
Reaction efficiencies of biorefinery processes are universally low because of the severe side reactions at high substrate loading.
Chuanyunlong Bai, Qidong Hou, Xinyu Bai, Yifan Nie, Hengli Qian, Meinan Zhen, Meiting Ju   +6 more
openaire   +1 more source

5-hydroxymethylfurfural in bee feed

Sugar Industry, 2016
Classical beefeed is a concentrated sucrose solution that has to be freshly prepared by the beekeeper. Commercial bee feeds are invert sugar or starch syrups with added fructose that prevents cristallisation and keeps the bee feed fit for use for a longer period of time.
openaire   +1 more source

The Formation of 5-Hydroxymethylfurfural from Hexoses

Australian Journal of Chemistry, 1963
Gas chromatography has been used to demonstrate the existence of the equilibrium; fructose, during the conversion of fructose, free from glucose, into 5-hydroxymethylfurfural under conditions of acid catalysis. The relationship of this equilibrium to subsequent stages in the conversion is discussed.
CJ Moye, ZS Krzeminski
openaire   +1 more source

Selective Electrogenerative Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandialdehyde

ChemSusChem, 2017
Abstract2,5‐furandialdehyde (DFF) was synthesized by electrogenerative oxidation of 5‐hydroxymethylfurfural (HMF) over a PtRu catalyst with 89 % selectivity at 50 °C after 17 h. This approach opens an avenue for a selective, energy‐efficient and green oxidation of biomass‐derived platform alcohols to added‐value chemicals.
Vitaly V Ordomsky, Marc Pera-Titus
exaly   +3 more sources

Chloroperoxidase-Catalyzed Oxidation of 5-Hydroxymethylfurfural

Journal of Carbohydrate Chemistry, 1997
Abstract Chloroperoxidase (CPO) catalyzes the oxidation of 5-hydroxymethylfurfural (HMF) with hydrogen peroxide as the oxidant. The reaction proceeds with 60–74% selectivity to furan-2,5-dicarboxaldehyde (FDC). The main byproduct is 5-hydroxy-methyl-2-furancarboxylic acid (HFCA); a minor amount of 5-formylfuran-2-carboxylic acid (FFCA) was also ...
M. P.J. van Deurzen, F. van Rantwijk, R. A. Sheldon   +2 more
openaire   +1 more source

Photocatalytic and Electrocatalytic oxidation of 5-hydroxymethylfurfural

2023
In the last 20 years, sustainability has been the major driving factor regardless of the field of research. The search for greener, more environmentally friendly alternative materials has garnered significant pace, especially in the last decade. 5-hydroxymethylfurfural (HMF) is one of the most versatile platform chemicals that can be derived from ...
openaire   +1 more source

Lipase‐Mediated Selective Oxidation of Furfural and 5‐Hydroxymethylfurfural

ChemSusChem, 2013
AbstractFurfural and 5‐hydroxymethylfurfural (HMF) are important biomass‐derived platform chemicals that can be obtained from the dehydration of lignocellulosic sugars. A possible route for the derivatization of furanics is their oxidation to afford a broad range of chemicals with promising applications (e.g., diacids, hydroxyl acids, aldehyde acids ...
Monika, Krystof, María, Pérez-Sánchez, Pablo, Domínguez de María   +2 more
openaire   +2 more sources